The landscapes, still life and urban scenes by Keith Thirgood are stylistically considered post-impressionist, coming from the tradition of van Gogh, Gauguin, Tom Thomson and the Group of Seven. Much of his output is of Ontario scenes; the disappearing barns of the surrounding countryside, the wilderness and small towns.

​Although much of his work is of Ontario, his collection includes work he's done of Quebec, the Maritimes, England, Paris, the Czech Republic and Slovakia.